DE59103472D1 - Chromic acid production using bipolar membranes. - Google Patents

Chromic acid production using bipolar membranes.

Info

Publication number
DE59103472D1
DE59103472D1 DE59103472T DE59103472T DE59103472D1 DE 59103472 D1 DE59103472 D1 DE 59103472D1 DE 59103472 T DE59103472 T DE 59103472T DE 59103472 T DE59103472 T DE 59103472T DE 59103472 D1 DE59103472 D1 DE 59103472D1
Authority
DE
Germany
Prior art keywords
acid production
chromic acid
bipolar membranes
bipolar
membranes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE59103472T
Other languages
German (de)
Inventor
Helmut Dr Klotz
Rainer Dr Weber
Wolfgang Dr Ohlendorf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of DE59103472D1 publication Critical patent/DE59103472D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/445—Ion-selective electrodialysis with bipolar membranes; Water splitting
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/22—Inorganic acids
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/28—Per-compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
DE59103472T 1990-06-23 1991-06-08 Chromic acid production using bipolar membranes. Expired - Fee Related DE59103472D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4020051A DE4020051A1 (en) 1990-06-23 1990-06-23 Alkali di:chromate and chromic acid prodn. by electrolysis - in multi--compartment cell with bipolar ion exchange membrane to screen anode from chromium cpds.

Publications (1)

Publication Number Publication Date
DE59103472D1 true DE59103472D1 (en) 1994-12-15

Family

ID=6408944

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4020051A Withdrawn DE4020051A1 (en) 1990-06-23 1990-06-23 Alkali di:chromate and chromic acid prodn. by electrolysis - in multi--compartment cell with bipolar ion exchange membrane to screen anode from chromium cpds.
DE59103472T Expired - Fee Related DE59103472D1 (en) 1990-06-23 1991-06-08 Chromic acid production using bipolar membranes.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4020051A Withdrawn DE4020051A1 (en) 1990-06-23 1990-06-23 Alkali di:chromate and chromic acid prodn. by electrolysis - in multi--compartment cell with bipolar ion exchange membrane to screen anode from chromium cpds.

Country Status (6)

Country Link
US (1) US5096547A (en)
EP (1) EP0463438B1 (en)
JP (1) JPH04231489A (en)
BR (1) BR9102613A (en)
DE (2) DE4020051A1 (en)
ES (1) ES2063405T3 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9302261A (en) * 1993-12-24 1995-07-17 Elektrolyse Project B V Method for cleaning acid solution.
US6063252A (en) * 1997-08-08 2000-05-16 Raymond; John L. Method and apparatus for enriching the chromium in a chromium plating bath
AUPP521298A0 (en) * 1998-08-12 1998-09-03 Life Therapeutics Limited Purification of fibrinogen
AUPP790898A0 (en) 1998-12-23 1999-01-28 Life Therapeutics Limited Renal dialysis
US20050224355A1 (en) * 1999-12-23 2005-10-13 Brendon Conlan Removal of biological contaminants
AUPP790698A0 (en) 1998-12-23 1999-01-28 Life Therapeutics Limited Separation of microorganisms
US7077942B1 (en) 1999-12-23 2006-07-18 Gradipore Limited Removal of biological contaminants
AUPQ691400A0 (en) * 2000-04-14 2000-05-11 Life Therapeutics Limited Separation of micromolecules
ATE449200T1 (en) 2000-04-18 2009-12-15 Gradipore Ltd SEPARATION AND TREATMENT OF SAMPLES BY ELECTROPHORESIS
AUPQ697300A0 (en) * 2000-04-18 2000-05-11 Life Therapeutics Limited Separation apparatus
US6923896B2 (en) * 2000-09-22 2005-08-02 The Texas A&M University System Electrophoresis apparatus and method
DE60142520D1 (en) * 2000-10-06 2010-08-19 Arturus Capital Ltd MULTI-PORT ELECTROPHORESE DISTRIBUTION DEVICE AND CORRESPONDING METHOD
AUPR222300A0 (en) * 2000-12-21 2001-01-25 Life Therapeutics Limited Electrophoresis device and method
RU2591025C1 (en) * 2015-03-11 2016-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет имени Д. И. Менделеева" (РХТУ им. Д. И. Менделеева) Method of electric membrane regeneration of solution for removal of chromium coatings
CN104862730B (en) * 2015-06-12 2018-03-06 广东航鑫科技股份公司 A kind of method that electrolysis with ion-exchange film prepares potassium permanganate
JP7219051B2 (en) * 2018-10-31 2023-02-07 三菱重工業株式会社 Acidic treatment liquid treatment apparatus and acidic treatment liquid treatment method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961200A (en) * 1961-12-08 1964-06-17 Pittsburgh Plate Glass Co Production of chromic acid
US3305463A (en) * 1962-03-16 1967-02-21 Pittsburgh Plate Glass Co Electrolytic production of dichromates
US4290864A (en) * 1979-05-29 1981-09-22 Diamond Shamrock Corporation Chromic acid production process using a three-compartment cell
US4273628A (en) * 1979-05-29 1981-06-16 Diamond Shamrock Corp. Production of chromic acid using two-compartment and three-compartment cells
US4536269A (en) * 1983-05-02 1985-08-20 Allied Corporation Multichamber two-compartment electrodialytic water splitter and method of using same for acidification of aqueous soluble salts

Also Published As

Publication number Publication date
EP0463438A1 (en) 1992-01-02
EP0463438B1 (en) 1994-11-09
BR9102613A (en) 1992-01-21
ES2063405T3 (en) 1995-01-01
DE4020051A1 (en) 1992-01-02
JPH04231489A (en) 1992-08-20
US5096547A (en) 1992-03-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee